Loch Ayr IA 05-GRA-1381
Ringgold County S30T69NR29W 2 miles N of Mt. Ayr.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 05-GRA-01920-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Not assessed
Fish Consumption
Not assessed
Primary Contact Recreation
Not assessed
Drinking Water
Threatened
Documentation
Assessment Comments
Basis for Assessment
Lake was monitored near dam and at inlet on Feb 3, 1993, for 7 ag herbicides in water and sediment. According to Miller and Kennedy (1993: 33), low levels of atrazine [0.44 ug/l] were found in water and sediment at both locations. None of the other herbicides were detected. Additional monitoring is needed to determine levels of herbicides during summer. Because level of atrazine in water were < 1/2 MCL, DW uses were assessed as FST.
Monitoring and Methods
Assessment Key Dates
Methods
| 270 | PWS chemical monitoring (ambient water) |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 3 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |